sed1355 ETC-unknow, sed1355 Datasheet - Page 207
sed1355
Manufacturer Part Number
sed1355
Description
Sed1355 Embedded Ramdac Lcd/crt Controller
Manufacturer
ETC-unknow
Datasheet
1.SED1355.pdf
(509 pages)
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Epson Research and Development
Vancouver Design Center
Programming Notes and Examples
Issue Date: 99/04/27
Note
int seGetBytesPerScanline(int DevID, UINT * pBytes)
Description:
Parameters:
Return Value: ERR_OK - operation completed with no problems
int seGetScreenSize(int DevID, UINT * Width, UINT * Height)
Description:
Parameters:
Return value: ERR_OK
int seSelectBusWidth(int DevID, int Width)
Description:
Parameters:
Return Value: ERR_OK
This call applies to the SED1355 ISA evaluation cards only.
Determines the number of bytes per scan line of the current display mode. It is
assumed that the registers have already been correctly initialized before seGetBytes-
PerScanline() is called.
The number of bytes per scanline calculation includes the value in the offset register.
For rotated modes the return value will be either 1024 (8 bpp) or 2048 (15/16 bpp)
to reflect the 1024 x 1024 virtual area of the rotated memory.
DevID
pBytes
ERR_FAILED- returned when this function is called for rotated display modes other
than 8, 15 or 16 bpp.
Gets the width and height in pixels of the display surface. The width and height are
derived by reading the horizontal and vertical size registers and calculating the
dimensions.
When the display is in portrait mode the dimensions will be swapped. (i.e. a 640x480
display in portrait mode will return a width and height of 480 and 640, respectively).
DevID
Width
Height
Call this function to select the interface bus width on the ISA evaluation card.
Selectable widths are 8 bit and 16 bit.
DevID
Width
ERR_FAILED- the function was called on a non-ISA platform or width was not set
to 8 or 16.
- registered device ID
- pointer to an integer which indicates the number of bytes per scan line
- registered device ID
- unsigned integer to receive the display width
- unsigned integer to receive the display height
- the operation completed successfully
- registered device ID
- desired bus width. Must be 8 or 16.
- the operation completed successfully
X23A-G-003-05
SED1355
Page 51
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